baber/WOPTO huggingface dataset:
Patent GB-1107561-A (GB)
Title: Preparation of 1-hydroxy-3-amino-pyrrolidone-2 and derivatives thereof
IPC: C07D207/46
Filed: 1965-02-16
Abstract: Compounds of the general formula <FORM:1107561/C2/1> (in which R1 and R2 are identical or different and each represent hydrogen, an alkyl or acyl group with 1-6 carbon atoms, a benzoyl, benzyloxycarbonyl or benzyl group, or taken together with the adjacent N-atom form a heterocyclic ring, which further may contain an O-atom, and one or more of the hydrogen atoms in positions 3, 4 and 5 may be replaced by an alkyl or cycloalkyl group with not more than 6 carbon atoms) are prepared by cyclizing a compound of the formula <FORM:1107561/C2/2> (in which X represents halogen or an alkylsulphonyloxy, arylsulphonyloxy or aralkylsulphonyloxy radical and the a ,b  and g carbon atoms may be substituted as indicated above) by means of lithium hydroxide.
Patent GB-568130-A (GB)
Title: Improvements in or relating to wrap-thread feed mechanism for knitting machines
IPC: D04B9/26
Filed: 1943-04-27
Abstract: 568,130. Knitting-machines. BENTLEY ENGINEERING CO., Ltd., BROOKRBY, E., and DEANS, F. E. April 27, 1943, No. 6660. [Class 74 (ii)] Each wrap-thread guide 16 is pivotally mounted upon a member on a part 17 of a member 14 movable substantially radially of the needle cylinder or cylinders, and cams 24, 25 are provided to move each guide in turn, first radially outwardly into operative position, then tangentially over a preselected number of needles, and finally to allow it to return to its initial position. The invention is described in connection with a superposed cylinder machine in which the members 14 are mounted upon a circular plate disposed between the two cylinders and rotating at the same speed as the cylinders. The members 14 may be arranged to slide in radial or substantially radial tricks, or as shown, may be pivoted upon the plate. The cams 24, 25 act upon lugs 22, 23 provided upon the members 14 and guides 16.
Patent GB-545374-A (GB)
Title: Improvements relating to ignition apparatus for internal combustion engines
IPC: F02P3/08
Filed: 1941-05-24
Abstract: 545,374. Ignition systems. LUCAS, Ltd., J., and LAIRD, J. A. May 24, 1941, No. 6685. [Class 7 (iv)] In an ignition system comprising a transformer a, b, a condenser c, a make-and-break device d in series with the condenser and the transformer, and a nigh-tension generator e, f for charging the condenser, one or more spark gaps h are arranged in series with the generator and condenser to prevent discharge of the condenser through the generator. A distributer j is interposed between the transformer secondary b and the sparking plugs i, or between the make-and-break d and separate transformers for each sparking plug.
Patent GB-689284-A (GB)
Title: Improvements in and relating to crates, cases, boxes and the like containers
IPC: B65D85/30
Filed: 1951-03-21
Abstract: 689,284. Crates. RYAN, B. J. March 21, 1951 [May 26, 1950], No. 6744/51. Class 18 A crate is constructed for complete discharge of its contents by relative sliding between the crate body and a plate mounted therein, or between the body and the bottom of the crate. In the former embodiment, Fig. 1, a plate 24 slides in grooves 21, 23 and, in the filled crate, rests at the left hand end of the crate as shown. To discharge the contents, a keeper bar 16 is released by withdrawing bolts 18a from slots 18 in grooves 15 and is raised clear of the end, the crate being placed on a shelf and the plate 24 held still while the crate body is withdrawn, leaving the contents on the shelf. The plate 24 may have side checks to steady the discharged contents and may be pivoted on links to enable it to reach either extremity of the crate ends. It may also have a corrugated surface partly to embrace the contents, e.g. bottles, which it contacts. In the latter embodiment, Fig. 9, the crate bottom 28 slides in grooves in the body and, when the crate is on the shelf, is pulled forward to permit the contents to drop on to the shelf. Both embodiments are flared at the top to permit stacking in tiers, and open work lids may be fitted to permit reversal of a crate filled with empty bottles, for drainage purposes. Handles such as 27 or carrying lugs secured to the sides may be fitted. The bar 16 may be pivoted to the body or may be a separate element. The crates may be constructed in wood.
Patent GB-683107-A (GB)
Title: Improvements relating to cleaning tools for suction cleaners
IPC: A47L9/06
Filed: 1951-03-21
Abstract: 683,107. Suction cleaners. HOOVER, Ltd. March 21, 1951 [March 21. 1950], No. 6763/51. Class 8 (i). A suction cleaner nozzle has a detachable plastic skin 15 holding a locking member 11 for a rotatably mounted connector tube 3, the locking member being inserted transversely through one or more apertures in the nozzle wall to engage the tube 3 and prevent its withdrawal from the exhaust port 2. The member 11 comprises a U-shaped bail whose legs pass through the wall apertures and engage a peripheral groove 10 of the tube 3 and whose yoke lies in a groove 13 outside the exhaust port 2. A brush 22 slidably mounted in a compartment 21 behind the suction mouth is moved by springs 42 to a working position on operating a pedal 52 and leaf spring 47 to release a latch 51. The brush is guided to slide in a direction backwardly inclined at an acute angle to the plane of the surface being cleaned. A plate 20 bounding the nozzle mouth 6 provides a smooth rounded bristle engaging surface, and also grips the skin 15 along an edge of a lip 16 thereof.
Patent GB-155156-A (GB)
Title: Improved hooping bands for the movable blades of steam or gas turbines
IPC: F01D5/22
Filed: 1920-03-05
Abstract: 155,156. Schneider et Cie. Jan. 8, 1920, [Convention date]. Blades.-Segmental shrouding-rings are scarfed at the joints as indicated in Figs. 2 and 3, so that adjacent segments are secured at the joint to at least one common blade. Fig. 8 shows a joint in which adjacent segments have tongues e' supported by parts e.
Patent GB-1105374-A (GB)
Title: Gas liquefaction process
IPC: F25J3/02
Filed: 1966-02-16
Abstract: 1,105,374. Gas liquefication processes. LUMMUS CO. 16 Feb., 1966 [18 Feb., 1965], No. 6788/66. Addition to 1,016,049. Heading F4P. Liquefaction of a hydrocarbon gas, e.g. natural methane, is effected by compressing at 13<SP>1</SP> feed gas to a pressure between 40 atoms. and about 1À5 times its critical pressure, cooling by indirect heat exchange at 18<SP>1</SP>, 19<SP>1</SP> with an expanded refrigerant, e.g. propylene, liquefying by indirect heat exchange at 20<SP>1</SP>, 21<SP>1</SP> with a further expanded refrigerant, e.g. ethylene, expanding at a valve 96 into a drum 95, withdrawing condensate therefrom and sequentially, expanding at valves 29<SP>1</SP>, 33<SP>1</SP>, 37<SP>1</SP> into flash drums 30<SP>1</SP>, 34<SP>1</SP>, 38<SP>1</SP> withdrawing product liquefied gas from drum 38<SP>1</SP> at about atmospheric pressure and feeding it to a storage container 43<SP>1</SP>. Gaseous overheads withdrawn from drums 95, 30<SP>1</SP>, 34<SP>1</SP>, 38<SP>1</SP> are compressed at 461 and recycled to the outlet of compressor 13<SP>1</SP> at a point either up or downstream of heat exchanger 18<SP>1</SP>. A portion of gaseous overhead from drum 95 is withdrawn as fuel gas.
Patent GB-150949-A (GB)
Title: Improved air heater for use with internal combustion engines
IPC: F01N5/00
Filed: 1920-03-06
Abstract: 150,949. Simpson, J., and McHardy, W. B. March 6, 1920. Heating charge.-A number of tubes are secured at each end in tube-plates 4. which fit into a casing 1 having flanged ports 2, which are attached to the cylinders and receive the exhaust gases, and an outlet 3. Air enters the tubes at 6 and escapes by passages 7, 8, 9 to the carburettor. The tubes may contain twisted strips of brass which serve as baffles. The casing is in two parts with an expansion joint 10 and may have an outer casing through which the air passes before it enters the tubes.
Patent GB-663812-A (GB)
Title: Improvements in or relating to apparatus for testing brakes of wheeled vehicles
IPC: G01L5/28
Filed: 1946-03-06
Abstract: 663,812. Testing brakes dynamometrically. SWITH, H. C. March 5,1947 [March 6,1946], No. 6909/46. Class 106 (ii). The brakes of wheeled vehicles are tested by apparatus comprising a circular metal disc 10 mounted on a central stem 11, coaxial with the vehicle axle, through which a turn-buckle 12 having right and left hand screwthreads passes, this turn-buckle engaging two opposed L-shaped arms 14 (not shown) guided for longitudinal movement in U-shaped guides 15 secured to the disc. A bracket 18 secured to each arm 14 has hooked ends 19 to engage over the exterior of a motor tyre, clamping being effected by rotating the handle 13 on the turnbuckle. A handle 20, freely pivoted on the stem 11, has pivoted thereto at 34 a link 22 comprising a gauge cylinder 23, in which is a piston 24, integral with a rod 25 shaped at 26 to engage abutments 27 in notches 28 spaced around the disc 10. The cylinder 23 is filled with liquid and provided with a pressure-gauge 29. In use, the apparatus is clamped in position, the brakes applied, preferably by a device as described in Specification 663,813, and torque applied to the disc 10 by the handle 20 through the gauge cylinder means and rod 25. In a modification, where the wheel has no tyres, the disc 10 has a series of holes therein adapted to engage the usual studs on the brake drum, the handle 20 being mounted on a bracket secured to and across the axis of the disc. The member 34 may be pivoted to the handle 20 to allow the gauge cylinder arrangement to be reversed. In a further modification, designed for use with various sizes of wheels, the handle 20 is extended and provided with a number of apertures to which the link 22 may be selectively connected. The other end of the link can be connected to the corresponding aperture in a second handle pivoted on the same axis as the first but angularly spaced therefrom, preferably by a lost-motion connection, this second handle having a releasable pawl adapted to engage one of the abutment faces 27 of the disc 10. Each handle could have a releasable pawl so that measurements may be taken in both directions of rotation of the brake drum relative to the brake shoes. The apparatus could be arranged to be engaged directly to the spokes of a vehicle wheel.
Patent GB-214789-A (GB)
Title: Improvements in or relating to the consumption of smoke in steam generator furnaces
Filed: 1923-03-10
Abstract: 214,789. Midgley, F. March 10, 1923. Smoke, consuming.-In a steam-boiler furnace the smoke and gases, before they escape from the boiler flues, are subjected to the action of flames from an auxiliary coke-fire furnace. As shown in Fig. 2, the auxiliary furnace comprises a hopper 1 leading to a passage 4 arrranged above a pivoted inclined grate 7 and travelling grate 8 mounted on a truck 9. Combustion products and flames are passed through an upwardly-inclined passage 11 to a passage 12 which gradually decreases in sectional area to a constricted portion and then increases in area to cause the flaming gases to be discharged into the smoke flues with considerable velocity.
Patent GB-125754-A (GB)
Title: A New Laryngotome and Tracheotome.
Inventor: ABEL ARTHUR LAWRENCE
IPC: A61M16/04
Filed: 1918-04-25
Abstract: 125,754. Abel, A. L. April 25, 1918. Cannulas; tracheotomy applia n c e s. - Relates to laryngotomy and tracheotomy tubes, and consists in making one valve W, of a Fuller's bivalve tracheotomy tube, a little shorter than the other valve Y, and grinding the concave edge of the prolonged extremity of the longer valve X to form a knife-like or scalpel edge Y, Z. The large flange C of the outer tube, with slits B for the passage of tapes, and the cannula or inner tube D with base flange E and handles F as a whole, are not modified,
Patent GB-833304-A (GB)
Title: Improvements in and relating to throwing blade assemblies for sandblasting
IPC: B24C5/06
Filed: 1958-03-04
Abstract: 833,304. Sandblasting. MASCHINEN-UND WERKZEUGFABRIK KABEL VOGEL & SCHEMMANN A.G. March 4, 1958 [March 5, 1957], No. 6951/58. Class 60. In a throwing blade assembly for sandblasting a blade has on its inner or rear end a projection from one side face through which projection a fastening bolt extends and connects the blade to a shaft. A disc 2 is mounted on a shaft 1, and has on each side a pair of blades, each blade being secured to the shaft by a pair of bolts 4, 4, passing through a projection 3 on the rear of the blade and through the shaft, the latter having locating flats thereon.
Patent GB-1378772-A (GB)
Title: Recorder-reproducer system
IPC: G11B15/61
Filed: 1972-03-10
Abstract: 1378772 Cassette video recorder/player RCA CORPORATION 10 March 1972 [16 March 1971] 6969/71 Heading G5R In a cassette helical-scan video recorder/ player, the cassette 6 is movable along guides 64 to an operative position in which an arcuate tape guide 8 enters the cassette 6 between top and bottom walls 104, 106 thereof, the guide 8 having a diagonal slot 10 for rotating heads 36. The guide 8 is a segment or a sector of a cylinder and projects from a support 24 of U-shaped section. Capstans 42, 44 are mounted in the support 24 and are driven at slightly different speeds to tension the tape 4. The cassette 6 has pinch rollers or pads 98 and a hinged front wall 102 which is raised by a member 112 engaging a groove (114), Fig. 2 (not shown), therein as the cassette 6 is advanced. The cassette 6 is mounted on a frame 72 guided in the guides 64 and having motors 80, 82 driving coplanar tape reels 94, 96. A stationary transducer 15 may be mounted on the guide 8. The axis of the guide 8 may be normal to the tape centre-line, Fig. 5 (not shown), or may be parallel to the axis of the disc 26 supporting the transducers 36, Fig. 6 (not shown). In the latter case the cassette includes inclined, resiliently-mounted guides (146), Fig. 7 (not shown), co-operable with locating members (148), Fig. 8 (not shown), on the guide 8.
Patent GB-556369-A (GB)
Title: Speech transmission system
IPC: H04B3/42
Filed: 1942-05-22
Abstract: 556,369. Composite transmission systems. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). May 22, 1942, No. 6997. [Class 40 (iv)] In a phantom-circuit system, low frequency signals are transmitted over the side-circuits with the aid of low-pass filters, shunt elements of which are centre-tapped to provide terminals for the phantom connections. As shown in Fig. 1, low-frequency telegraph signals from instruments associated with the respective wires of the upper side-circuit are applied across condensers 52, 53 and derived from condensers 111, 112 to enable them to be by-passed round a speech repeater. The condensers form low-pass filters with inductances such as 156, 172 and the by-path may include further filter sections, Fig. 2 (not shown). The phantom circuit is connected to common points of the condenser pairs. In another arrangement, Fig. 4, there is only one D.C. channel which uses all four wires in parallel and 20-cycle signalling sources are connected as shown to the side and phantom circuits. In a similar arrangement, Fig. 3 (not shown), the 20-cycle signal current for the phantom is applied to the transmission circuit over the D.C. connection. In other arrangements, Figs. 5 and 6 (not shown) respectively, the arrangements resemble those in Figs. 1 and 4 but make use of combined line and hybrid transformers. Modifications of the arrangement shown in Fig. 6 are illustrated by Figs. 8 and 9 (not shown). To eliminate interference between telegraph channels due to the coupling between windings such as 54, 55 of the line transformer, a counter-coupling may be provided by means of a transformer 241, 242, Fig. 10, having, if desired, a third winding 243 associated with a variable resistance to adjust the countercoupling. In another arrangement with the same object, Fig. 7 (not shown), the line side of the line transformer is shunted by an inductance to make it inefficient at the telegraph frequencies.
Patent GB-321624-A (GB)
Title: Improvements relating to the synchronous reproduction of picture films and disk sound records
IPC: G03B31/00
Filed: 1928-08-13
Abstract: 321,624. Verity, C. H. Aug. 13, 1928. Divided on 318,847, [Class 40 (ii), Phonographs &c.]. Kinematograph apparatus.- A spool has synchronized sound record discs mounted on its flanges and held thereto by a pin passing through the spool and records. The records 10 may have peripheral notches to engage lugs on the spool flanges 3 thereby preventing assembly of mount records, and covers 8 may enclose the whole.
Patent GB-1164811-A (GB)
Title: Logic Memory Circuit
Inventor: KINSELLA JAMES JOSEPH
IPC: H01H47/00
Filed: 1966-02-18
Abstract: 1,164,811. Control circuits for magnetic reed switches. BROOKHIRST IGRANIC Ltd. 14 Feb., 1967 [18 Feb., 1966], No. 7255/66. Heading H2H. A sealed magnetic reed switch REL (Fig. 2), whose contacts RS are opened and closed by current flow of opposite polarity through a control coil RC and are maintained closed by a permanent magnet M not strong enough to close the contacts by itself, is provided with a twostate switching circuit (Fig. 1) to control the coil RC and a feedback connection between the contacts RS and the switching circuit, the arrangement ensuring that in the event of failure and restoration of the supply +V, the switching circuit is in the same state after restoration as it was before failure. The direction of current through the coil RC is determined by the condition of a transistor T1 controlled by signals applied to terminals ON, OFF. With no signal at either terminal the current direction is such as to open the contacts RS, but when a signal is applied to the ON terminal transistor T1 conducts to reverse the current direction and close the contacts RS. This closure produces at a terminal O/P a signal which is fed back to the terminal ON to maintain the contacts closed if the closing signal to ON is removed. If the supply + V fails when the contacts RS are closed, the signal from O/P reappears on restoration to maintain the switching circuit in its " contacts-closed " condition. The contacts RS are opened by the application of a signal to the terminal OFF, the switching circuit being unaffected by a supply failure and restoration during this operating condition.
Patent GB-854766-A (GB)
Title: Method and apparatus for brushing metal strip or like elongated metal workpieces
IPC: B21B45/06
Filed: 1957-03-05
Abstract: 854,766. Abrasive brushing. OSBORN MANUFACTURING CO. March 5, 1957 [May 4, 1956], No. 7286/56. Drawings to Specification. Class 60. [Also in Group XXVIII]  Metal strip is cleaned by a continuous brushing process in which abrasive is supplied to the interior of hollow brushes which flex the strip as it passes over them and which may be set diagonal to the length of the strip. The brushes may be periodically reversed in rotation and also oscillated slowly along their principal axis (see Group XXVIII). Specifications 809,160, 850,461 and 854,765 are referred to.
Patent GB-1368544-A (GB)
Title: Process and installation for the continuous production of trinitrotoluene
IPC: B01J19/18
Filed: 1973-02-14
Abstract: 1368544 Preparation of trinitrotoluene SOC NATIONALE DES POUDRES ET EXPLOSIFS 14 Feb 1973 [25 Feb 1972] 7313/73 Heading C2C 2,5,6-Trinitrotoluene is prepared from mononitrotoluene by reaction with nitric acid and concentrated or fuming sulphuric acid in two steps, the first being the preparation of dinitrotoluene and the second the conversion of dinitrotoluene to trinitrotoluene, the second step being carried out in apparatus in which the reagents flow in co-current comprising at least two stages, each stage having at least two series connected nitration reactors followed by a separator, nitric acid and sulphuric acid being supplied only to the first reactor of each stage. In the illustrated apparatus mononitrotoluene is introduced at 3 and 4 respectively into separator S 0  and reactor R 1 . The mononitrotoluene is cooled in R 1  by means of cold water circulating in a coil and is then passed through separator S 1  and on to reactor R 2  where it is mixed with 50-55% aqueous HNO 3  to initiate the reaction after a further separation in S 2  the reaction is completed by contacting with more 50-55% aqueous HNO 3  in reactor R 3  and the dinitrated product is separated off in separator S 3 . The product leaving separator S 3  passes to the first reactor R 4  of the first stage of the second nitration reaction step where it is mixed in co-current flow with nitric and cone. sulphuric acids. The reaction is continued in reactors R 5  and R 6  and the products are separated in separator S 4 . The organic phase is mixed with further acid at R 7 , reacted in R 7 , R 8  and R 9  and again separated in S 5 . The final stage of this nitration step is carried out in reactors R 10 -B 12  after addition of fresh acid at R 10 . 2,4,6-Trinitrotoluene is recovered from separator S 6  and may be treated with fused sulphite to obtain grade I trinitrotoluene. The mixed acids removed from separators S 4 -S 6  may be combined and recycled to the final reactor R 3  of the first nitration step. When fuming sulphuric acid is to be used the apparatus is modified by introduction of a mixer before R 4  in which the acids are mixed prior to the addition to dinitrotoluene and also by reduction in the number of stages used in the final reaction step to two because of the increased concentration of the sulphuric acid.
Patent GB-434183-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/38
Filed: 1935-03-08
Abstract: 434,183. Safety razors. SIEMENS - SCHUCKERTWERKE AKT. - GES., Siemensstadt, Berlin. March 8, 1935, No. 7344. Convention date, March 16, 1934. [Class 30] A weight 12 is mounted on one arm 5 of the core of a U-shaped electromagnet. When the coil 6 is energized by an alternating or interrupted current the weight vibrates and by reaction causes the whole razor to vibrate, and with it the blade 3. The amplitude of the vibrations may be regulated by a screw 11. The mechanism is enclosed in the hollow handle 1.
Patent GB-432059-A (GB)
Title: Improvements in or relating to apparatus for playing table ball games
IPC: A63D13/00
Filed: 1934-03-08
Abstract: 432,059. Table games. SHERMAN, H., 21, Christian Street, Commercial Road, London. March 8, 1934, No. 7404. [Class 132 (ii)] In apparatus for playing a table game of the kind wherein a ball 27 is projected on to an inclined table 1 provided with scoring holes 2 or areas and with deflecting means in the form of a finger adjustable by the player and capable of being introduced into or withdrawn from the path of the ball, the deflecting means comprises a series of spaced fingers 15 mounted on a carrier 14 and normally hidden behind the curved wall 7 of the table but capable of being projected into the playing area at will so that of the fingers one, depending on the position of the ball when the carrier is moved, will intercept the ball. The carrier is slidable between the upper surface of the table and the lower surface of a member 8 constituting the wall 7, and is actuated by a spring-returned push-button 22 through a link 20 and lever 17. A similar deflecting member might be introduced from the side of the apparatus towards the upper end of the table.
Patent GB-217322-A (GB)
Title: Improvements in or relating to the treatment of tungsten and other metals having a high melting point
IPC: C22C1/04
Filed: 1923-03-14
Abstract: 217,322. Dicker, S. G. S., (Naamlooze Vennootschap Hollandsche Tungstendraadfabriek). March 14, 1923. Metals, powdered, obtaining coherent masses from. - Refractory metals such as tungsten and molybdenum, suit. able for use in the production of wires or filaments, are sintered in preheated hydrogen. In the water-jacketed furnace shown, through which hydrogen is passed, the cold hydrogen is prevented from coming into contact with the tungsten rod 4 by enclosing the rod in a sleeve 14 of magnesia, quartz, or other refractory material. The sleeve is heated by radiation from the hot rod 4 and in turn heats the hydrogen, the latter having access to the rod only through the narrow passages 15. Specification 23499/09 is referred to.